Adam Lankford is a professor of criminology and criminal justice at The University of Alabama. He is the author of two books and many peer-reviewed journal articles on various types of criminal behavior, including mass murder, mass shootings, and terrorism. His research has examined perpetrators’ psychological tendencies, mental health prob­lems, suicidal motives, fame-seeking tactics, copycat behavior, and weapons acquisition—along with the strategies that might be used to prevent their attacks. His email address is adam.lankford@​ua.edu.